How do I fill holes in the fence materials?
If you have holes in your Trex posts or rails, you can easily patch them. Most holes can be filled with very little visibility after the repair. If you have very large holes or the holes are in the pickets, you may need to replace the component.
Methods of filling holes in Trex composite components
Small holes with mushroomed material remaining
If the hole is very small, the mass that surrounds the hole has usually been displaced and has risen above the surface of the Trex material. Pinch together the mass that has mushroomed out of the hole and press it back into the hole. Lightly tap the material with a hammer to flatten it.
Medium size holes
If the hole is large enough that insufficient displaced surface material surrounds the hole, use a wad of Trex sawdust from a waste material, compress it between your fingers into a ball and press the mass tightly into the hole. Tap the wad lightly with a hammer to compress it even further into the space. Afterwards, carefully use a flat head screwdriver or similar to scrape off any excess without scratching the Trex material. Adding a drop of glue to the ball before pressing it into the hole can help keep the wad in place if the hole is more than the size of a screw.
Large holes
If the hole is even larger, it may be necessary to make a plug. Take a clean chip of Trex material that is slightly larger than the hole and tap it in lightly until it is even with the surrounding surface. Gently scrape off extra material being careful not to scratch the surface around it. If you want an even cleaner look, use a tool called a hollow punch, drill out a piece of Trex waste material to create a circular plug. Hollow punches can be purchased at any hardware or box store. If necessary, make the hole more uniformly circular to allow the plug to fit snugly. Run a small bead of exterior-compatible glue or caulk around the inside of the hole then press the plug into place.
If desired, add a touch of matching stain to the finished work to make it more uniform with the surrounding material.
